netdev - Re: [PATCH] iptables: lock free counters

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <499E7B03.9090409@trash.net>
Date:	Fri, 20 Feb 2009 10:42:27 +0100
From:	Patrick McHardy <kaber@...sh.net>
To:	Rick Jones <rick.jones2@...com>
CC:	Stephen Hemminger <shemminger@...tta.com>,
	Eric Dumazet <dada1@...mosbay.com>,
	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	netfilter-devel@...r.kernel.org
Subject: Re: [PATCH] iptables: lock free counters

Rick Jones wrote:
>>>> Thanks Stephen, thats very cool stuff, yet another rwlock out of 
>>>> kernel :)
>>>
>>> Do you folks need/want further testing against the 32-core setup?
>>
>>
>> It would be good to combine all 3 (iptables-rcu, timer change, and 
>> conntrack lock)
>> to see what the overhead change is.
> 
> Fair enough. Is there a tree somewhere I can pull with all those in it, 
> or do I need to go back through the emails and apply patches?

You can use my nf-next.git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6.git

It contains the lock free counters, as well as smaller optimizations
from Eric. The last timer patch I've seen missed the actual conversion
to use mod_timer_pending(), but it would be great to have some numbers
on the conntrack lock changes. Thanks Rick!
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html